申请人:Nissan Chemical Industries, Ltd.
公开号:EP3252840A1
公开(公告)日:2017-12-06
Provided is a varnish for the formation of a charge-transporting thin film, said varnish including an organic solvent, a charge-transporting substance, and a 2,2,6,6-tetraalkylpiperidine-N-oxyl derivative represented by formula (T1)
(in the formula, each RA independently represents a C1-20 alkyl group, and RB represents a hydrogen atom, a hydroxy group, an amino group, a carboxyl group, a cyano group, an oxo group, an isocyanato group, a C1-20 alkoxy group, a C2-20 alkylcarbonyloxy group, a C7-20 arylcarbonyloxy group, a C2-20 alkylcarbonylamino group or a C7-20 arylcarbonylamino group).
本发明提供了一种用于形成电荷传输薄膜的清漆,所述清漆包括有机溶剂、电荷传输物质和由式 (T1) 表示的 2,2,6,6-四烷基哌啶-N-氧代衍生物
(式中,每个 RA 独立地代表一个 C1-20 烷基,RB 代表一个氢原子、一个羟基、一个氨基、一个羧基、一个氰基、一个氧代基、一个异氰基、一个 C1-20 烷氧基、一个 C2-20 烷基羰氧基、一个 C7-20 芳基羰氧基、一个 C2-20 烷基羰基氨基或一个 C7-20 芳基羰基氨基)。